<template>
  <div id="aCoursesList" class="bg-fa of">
    <!-- /课程详情 开始 -->
    <section class="container">
      <section class="path-wrap txtOf hLh30">
        <a href="././" title class="c-999 fsize14">首页</a>
        \
        <a href="./" title class="c-999 fsize14">课程列表</a>
        \
        <span class="c-333 fsize14" v-if="course.title">{{course.title}}</span>
      </section>
      <div>
        <!--封面-->
        <article class="c-v-pic-wrap">
          <section class="p-h-video-box" id="videoPlay">
            <img :src="course.cover" :alt="course.title" class="dis c-v-pic">
          </section>
        </article>
        <aside class="c-attr-wrap">
          <section class="ml20 mr15">
            <h2 class="hLh30 txtOf mt15">
              <span class="c-fff fsize24">{{course.title}}</span>
            </h2>
            <section class="c-attr-jg">
              <span class="c-fff">价格：</span>
              <b class="d-red" style="font-size:24px;">￥{{course.price}}</b>
            </section>
            <section class="c-attr-mt c-attr-undis">
              <span class="c-fff fsize14">主讲： {{course.teacherName}}&nbsp;&nbsp;&nbsp;</span>
            </section>
            <section class="c-attr-mt of">
                      <span class="ml10 vam">
                          <em class="icon18 scIcon"></em>
                          <a class="c-fff vam" title="收藏" href="#">收藏</a>
                      </span>
            </section>
            <section class="c-attr-mt">
              <a href="#" title="立即观看" class="comm-btn c-btn-3" v-if="isbuyCourse||Number(course.price) === 0">立即观看</a>
              <a href="#" title="立即购买" class="comm-btn c-btn-3" v-else @click.stop="createOrder()">立即购买</a>
            </section>
          </section>
        </aside>
        <aside class="thr-attr-box">
          <ol class="thr-attr-ol clearfix">
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">购买数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{course.buyCount}}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">课时数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{course.lessonNum}}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">浏览数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{course.viewCount}}</h6>
              </aside>
            </li>
          </ol>
        </aside>
        <div class="clear"></div>
      </div>
      <!-- /课程封面介绍 -->
      <div class="mt20 c-infor-box">
        <article class="fl col-7">
          <section class="mr30">
            <div class="i-box">
              <div>
                <section id="c-i-tabTitle" class="c-infor-tabTitle c-tab-title">
                  <a name="c-i" class="current" title="课程详情">课程详情</a>
                </section>
              </div>
              <article class="ml10 mr10 pt20">
                <div>
                  <h6 class="c-i-content c-infor-title">
                    <span>课程介绍</span>
                  </h6>
                  <div class="course-txt-body-wrap">
                    <section class="course-txt-body">
                      <div v-html="course.description"></div>

                    </section>
                  </div>
                </div>
                <!-- /课程介绍 -->
                <div class="mt50">
                  <h6 class="c-g-content c-infor-title">
                    <span>课程大纲</span>
                  </h6>
                  <section class="mt20">
                    <div class="lh-menu-wrap">
                      <div id="lh-menu" class="lh-menu mt10 mr10">
                        <!--<ul>
                            &lt;!&ndash; 课程章节目录 &ndash;&gt;
                            <li class="lh-menu-stair" v-for="chapter in chapterList" v-bind:key="chapter.chanpterId">
                                <a href="javascript: void(0)" :title="chapter.title" class="current-1">
                                    <em class="lh-menu-i-1 icon18 mr10"></em>{{chapter.title}}
                                </a>
                                <ol class="lh-menu-ol" style="display: block;">
                                    <li class="lh-menu-second ml30"  v-for="video in chapter.children" v-bind:key="video.videoId">
                                        <a :href="'/player/' + video.videoUrl" target="_blank" :title="video.title">
                                            <span class="fr" v-if="video.isFree === true">
                                                <i class="free-icon vam mr10">免费试听</i>
                                            </span>
                                            <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{video.title}}
                                        </a>
                                    </li>
                                </ol>
                            </li>
                        </ul>-->
                        <el-collapse class="menu-chapter" v-for="chapter in chapterList" v-bind:key="chapter.id">
                          <el-collapse-item>
                            <template slot="title">
                              <span href="javascript: void(0)" :title="chapter.title" class="current-1"
                                    style="width: 88%">
                                <em class="lh-menu-i-1 icon18 mr10"></em>{{chapter.title}}
                              </span>
                              <div>{{chapter.children.length}}个小节</div>

                            </template>
                            <div class="lab-item" v-for="video in chapter.children" v-bind:key="video.id">
                              <div class="period_top" @click="toPlayer(video.videoSourceId,video.free)">
                                <div class="period_video "></div>
                                <span class="period_num"></span>
                                <span class="c_blue" v-if="video.free">(免费)</span>
                                <span>{{video.title}}</span>
                                <span class="video_time fr">00:23:00分钟</span>

                              </div>

                            </div>
                          </el-collapse-item>
                        </el-collapse>
                      </div>
                    </div>
                  </section>
                </div>
                <!-- /课程大纲 -->
              </article>
            </div>
          </section>
        </article>
        <aside class="fl col-3">
          <div class="i-box">
            <div>
              <section class="c-infor-tabTitle c-tab-title">
                <a title href="javascript:void(0)">主讲讲师</a>
              </section>
              <section class="stud-act-list">
                <ul style="height: auto;">
                  <li>
                    <div class="u-face">
                      <a :href="'/teacher/'+course.teacherId" target="_blank">
                        <img :src="course.avatar" width="50" height="50" alt>
                      </a>
                    </div>
                    <section class="hLh30 txtOf">
                      <a class="c-333 fsize16 fl" :href="'/teacher/'+course.teacherId" target="_blank">{{course.teacherName}}</a>
                    </section>
                    <section class="hLh20 txtOf">
                      <span class="c-999">{{course.intro}}</span>
                    </section>
                  </li>
                </ul>
              </section>
            </div>
          </div>
        </aside>
        <div class="clear"></div>
      </div>


      <!-- /评论 开始 -->
      <div class="mt50 commentHtml">
        <div>
          <h6 class="c-c-content c-infor-title" id="i-art-comment">
            <span class="commentTitle">课程评论</span>
          </h6>
          <section class="lh-bj-list pr mt20 replyhtml">
            <ul>
              <li class="unBr">
                <aside class="noter-pic">
                  <img width="50" height="50" class="picImg" src="~/assets/img/avatar-boy.gif">
                </aside>
                <div class="of">
                  <section class="n-reply-wrap">
                    <fieldset>
                      <textarea name="" v-model="comment.content" placeholder="输入您要评论的文字"
                                id="commentContent"></textarea>
                    </fieldset>
                    <p class="of mt5 tar pl10 pr10">
                      <span class="fl "><tt class="c-red commentContentmeg" style="display: none;"></tt></span>
                      <input type="button" value="回复" class="lh-reply-btn" @click="addComment()">
                    </p>
                  </section>
                </div>
              </li>
            </ul>
          </section>
          <section class="">
            <section class="question-list lh-bj-list pr">
              <ul class="pr10">
                <li v-for="(comment,index) in data.items" v-bind:key="index">
                  <aside class="noter-pic">
                    <img width="50" height="50" class="picImg" :src="comment.avatar">
                  </aside>
                  <div class="of">
                    <span class="fl">
                    <font class="fsize12 c-blue">
                      {{comment.nickname}}
                    </font>
                    <font class="fsize12 c-999 ml5">评论：</font></span>
                  </div>
                  <div class="noter-txt mt5">
                    <p>{{comment.content}}</p>
                  </div>
                  <div class="of mt5">
                    <span class="fr"><font class="fsize12 c-999 ml5">{{comment.gmtCreate}}</font></span>
                  </div>
                </li>

              </ul>
            </section>
          </section>

          <!-- 公共分页 开始 -->
          <div class="paging">
            <!-- undisable这个class是否存在，取决于数据属性hasPrevious -->
            <a
              :class="{undisable: !data.hasPrevious}"
              href="#"
              title="首页"
              @click.prevent="gotoPage(1)">首</a>
            <a
              :class="{undisable: !data.hasPrevious}"
              href="#"
              title="前一页"
              @click.prevent="gotoPage(data.current-1)">&lt;</a>
            <a
              v-for="page in data.pages"
              :key="page"
              :class="{current: data.current == page, undisable: data.current == page}"
              :title="'第'+page+'页'"
              href="#"
              @click.prevent="gotoPage(page)">{{ page }}</a>
            <a
              :class="{undisable: !data.hasNext}"
              href="#"
              title="后一页"
              @click.prevent="data.hasNext?gotoPage(data.current+1):''">&gt;</a>
            <a
              :class="{undisable: !data.hasNext}"
              href="#"
              title="末页"
              @click.prevent="gotoPage(data.pages)">末</a>
            <div class="clear"/>
          </div>
          <!-- 公共分页 结束 -->
        </div>

        <!-- /评论 结束 -->
      </div>
      <!-- /课程详情 结束 -->
    </section>


  </div>
</template>

<script>
  import course from "@/api/course"
  import comment from '@/api/comment'
  import order from '@/api/order'
  import cookie from "js-cookie";

  export default {
    /* asyncData({params, error}) {
       const courseId = params.id
       return course.getById(params.id).then(response => {
         console.log(response.data);
         return {
           course: response.data.course,
           chapterList: response.data.chapterVoList
         }
       })
     },*/ data() {
      return {
        courseId: this.$route.params.id,
        data: {},
        page: 1,
        limit: 4,
        total: 10,
        comment: {
          content: '',
          courseId: ''
        },
        course: {},
        chapterList: {},
        isbuyCourse: false,
      }
    }, created() {
      this.initCourseInfo()
      this.initComment()
    }
    , methods: {
       //
      toPlayer(vodId,isFree) {
        if(!this.isbuyCourse&& !isFree){
          this.$message.warning("当前为付费内容,请前往购买")
          return  false
        }
        console.log(vodId)
        if (!vodId) {
          this.$message.warning("暂无内容")
          return false
        }
        //打开新窗口
        let routeData = this.$router.resolve({path: '/player/' + vodId});
        window.open(routeData.href, '_blank');
      },
      initCourseInfo() {
        course.getById(this.courseId).then(response => {
          console.log(response.data);
          this.course = response.data.course
          this.chapterList = response.data.chapterVoList
          this.isbuyCourse=response.data.isbuy
          console.log(this.isbuyCourse)

        })
      },
      initComment() {
        comment.getPageList(this.page, this.limit, this.courseId).then(response => {
          this.data = response.data
          // console.log("评论", this.data)

        })
      },
      gotoPage(page){
        comment.getPageList(page, this.limit,this.courseId).then(response => {
          this.data = response.data
        })
      },
      addComment(){
        if(!cookie.get('we_token')){
          this.$message.warning("您还未登录，请先前往登录")
          return false;
        }
        this.comment.courseId = this.courseId
        this.comment.teacherId = this.course.teacherId
        comment.addComment(this.comment).then(response => {
          console.log(response.data)
          if(response.success){
            this.$message.success("评论成功")
            this.comment.content = ''
            this.initComment()
          }
        })
      },
      createOrder(){
        order.createOrder(this.courseId).then(response => {
          if(response.success){
            //订单创建成功，跳转到订单页面
            this.$router.push({ path: '/order/'+ response.data.orderId })
          }
        })
      },
    }
  }
</script>
<style scoped>
  [v-cloak] {
    display: none !important;
  }

  .c-btn-3 {
    bdisplay: block;
    width: 136px;
    height: 36px;
    color: #fff;
    background: #d51423;
    border: none;
    border-radius: 6px;
    line-height: 36px;
    text-align: center;
    font-size: 14px;
  }

  .menu-chapter {
    margin: 10px 0;
    background: #eee;
  }

  .current-1 {
    color: #666 !important;
    font-size: 1rem;
    font-weight: 400;
  }

  .lab-item {
    margin-bottom: 10px;
    border: 1px solid #eee;
  }

  .period_top {
    width: 627px;
    padding-left: 20px;
    height: 46px;
    line-height: 46px;
    position: relative;
    padding-right: 104px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;

  }

  .period_top .period_video {
    display: inline-block;
    width: 21px;
    height: 21px;
    position: relative;
    top: 6px;
    margin-right: 10px;
    background: url("./static/d372b85.svg") 50%;
    background-size: 21px 21px;

  }

  .c_blue {
    color: #107ec4;
  }

  .period_top .video_time {
    position: absolute;
    right: 0;
  }

  .fr {
    float: right;
  }

  .period_top.on, .period_top:hover {
    cursor: pointer;
    background: #f2f2f2;
    color: #d51423;
  }

  .period_top.on .period_video, .period_top:hover .period_video {
    background: url("./static/e8e8de1.png") 50%;
  }

  /*
    .commentHtml{
      width: 70%;
      margin: 50px auto;
    }*/

</style>
